ORIGINAL ARTICLE
 
KEYWORDS
ABSTRACT
Atronectria thelotrematis, a lichenicolous pyrenomycete growing on Thelotrema lepadinum, is described as new to science from Chile. The species is characterized by black perithecioid ascomata; a brown, not changing color in K and lactic acid, N+ reddish orange exciple resembling textura angularis or textura epidermoidea; 0–4-septate periphyses; a I−, K/I− hymenium with rather rare lipid droplets; the absence of distinct interascal filaments; inoperculate, unitunicate, cylindrical, 8-spored, I−, K/I− asci; and hyaline to occasionally light brown, smooth to mostly finely verruculose, 1-septate, homopolar ascospores, uniseriate in the ascus. A key to ten species of lichenicolous fungi known to occur on Thelotrema is provided.
FUNDING
This study was carried out within the framework of the research project of the V. L. Komarov Botanical Institute of the Russian Academy of Sciences ‘Biodiversity, ecology, structural and functional features of fungi and fungus-like protists’ (122011900033-4) using the equipment of its Core Facility Center ‘Cell and Molecular Technologies in Plant Science’. The author’s visit to UPS herbarium was financially supported by the Rolf Santesson foundation.
 
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